$0νββ$ and $2νββ$ nuclear matrix elements, QRPA, and isospin symmetry restorationReport as inadecuate



 $0νββ$ and $2νββ$ nuclear matrix elements, QRPA, and isospin symmetry restoration


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Within QRPA we achieve partial restoration of the isospin symmetry and hence fulfillment of the requirement that the $2 u\beta\beta$ Fermi matrix element $M^{2 u} F$ vanishes, as it should, unlike in the previous version of the method. This is accomplished by separating the renormalization parameter $g {pp}$ of the particle-particle proton-neutron

Author: Fedor Šimkovic; Vadim Rodin; Amand Faessler; Petr Vogel

Source: https://archive.org/



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